Valken M4 Thermold RMAG 300-Round Hicap AEG Magazine - Black AEP Airsoft Guns this is a great hop

this is a great hop up chamber for those that want to upgrade from their factory's original

Includes Micro Dot dust cover and batteries

Uses its own unique co2 Glock 17 magazine

low cost replacement for stock

28 TPA Rating

Valken M4 Thermold RMAG 300-Round Hicap AEG Magazine - Black AEP Airsoft Guns this is a great hopValken M4 Thermold RMAG Style 300 Round Hicap AEG Magazine (Black). Fits in standard M4 AEG guns of all types. A polymer modern designed unique airsoft M4 hicap magazine with the flush fitting winding wheel on the bottom. Cool design so you can stand your magazines upright without the wheel in the way. Easy to load and fill. Fits ALL M4 AEG airsoft guns. V106654